EP2975969A1 - Dispositif de commande pour une table réglable électriquement en hauteur, table réglable électriquement en hauteur, système d'entraînement pour une table réglable électriquement en hauteur et procédé pour régler la hauteur d'un plateau d'une table - Google Patents

Dispositif de commande pour une table réglable électriquement en hauteur, table réglable électriquement en hauteur, système d'entraînement pour une table réglable électriquement en hauteur et procédé pour régler la hauteur d'un plateau d'une table

Info

Publication number
EP2975969A1
EP2975969A1 EP14709680.4A EP14709680A EP2975969A1 EP 2975969 A1 EP2975969 A1 EP 2975969A1 EP 14709680 A EP14709680 A EP 14709680A EP 2975969 A1 EP2975969 A1 EP 2975969A1
Authority
EP
European Patent Office
Prior art keywords
table top
force
height adjustment
drive
height
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP14709680.4A
Other languages
German (de)
English (en)
Other versions
EP2975969B9 (fr
EP2975969B1 (fr
Inventor
Walter Koch
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Logicdata Electronic and Software Entwicklungs GmbH
Original Assignee
Logicdata Electronic and Software Entwicklungs GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Logicdata Electronic and Software Entwicklungs GmbH filed Critical Logicdata Electronic and Software Entwicklungs GmbH
Publication of EP2975969A1 publication Critical patent/EP2975969A1/fr
Application granted granted Critical
Publication of EP2975969B1 publication Critical patent/EP2975969B1/fr
Publication of EP2975969B9 publication Critical patent/EP2975969B9/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B9/00—Tables with tops of variable height
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16M—FRAMES, CASINGS OR BEDS OF ENGINES, MACHINES OR APPARATUS, NOT SPECIFIC TO ENGINES, MACHINES OR APPARATUS PROVIDED FOR ELSEWHERE; STANDS; SUPPORTS
    • F16M11/00—Stands or trestles as supports for apparatus or articles placed thereon ; Stands for scientific apparatus such as gravitational force meters
    • F16M11/02—Heads
    • F16M11/18—Heads with mechanism for moving the apparatus relatively to the stand
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/20—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection for measuring, monitoring, testing, protecting or switching
    • H02K11/24—Devices for sensing torque, or actuated thereby
    • H—ELECTRICITY
    • H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02K—DYNAMO-ELECTRIC MACHINES
    • H02K11/00—Structural association of dynamo-electric machines with electric components or with devices for shielding, monitoring or protection
    • H02K11/40—Structural association with grounding devices
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47B—TABLES; DESKS; OFFICE FURNITURE; CABINETS; DRAWERS; GENERAL DETAILS OF FURNITURE
    • A47B2200/00—General construction of tables or desks
    • A47B2200/0035—Tables or desks with features relating to adjustability or folding
    • A47B2200/005—Leg adjustment
    • A47B2200/0056—Leg adjustment with a motor, e.g. an electric motor

Definitions

  • the invention relates to an operating device for an electrically height-adjustable table, an electrically height-adjustable table with such an operating device and a drive system for an electrically height-adjustable table with such an operating device.
  • the invention further relates to a method for height adjustment of a table top of a table.
  • a task to be solved is to provide an improved Kon ⁇ concept for an operation of an electrically height-adjustable table.
  • This object is achieved by the subject matter of the independent Pa ⁇ tentments. Further developments and embodiments are the subject of the dependent claims.
  • the improved operating concept based on the idea on each rigidly a movement direction zugeord ⁇ designated actuators to dispense.
  • ei ⁇ ne control device according to the improved concept of a simple actuator, see, for example, an electromechanical switch or a touch-sensitive button, and a force sensor, which is adapted to measure a force acting on the tabletop power.
  • measured values can be evaluated by the force sensor to determine whether a user loading the table next to the operation of the Betuschistsele ⁇ ment also exerts force in a direction on the table or the table top. For example, if the table ⁇ plate is pulled in a certain period after the detected operating upward, upward movement of the table can tion due to the Kraftyere- be triggered.
  • the evaluation circuit is set up to detect an actuation of the actuating element while blocking a height adjustment of the tabletop, in particular mechanically blocked.
  • the evaluation circuit is furthermore intended to receive measured values from the force sensor in a predetermined period of time after the detected actuation and to determine a force change value, in particular an absolute force change and / or a force gradient, from the received measured values.
  • the Ausreteschal ⁇ tung When the change of force value is greater than a threshold value, the Ausyesschal ⁇ tung outputs a control signal to the controller which initiates a Hö ⁇ height adjustment of the table top in a direction.
  • the direction depends on a sign of the force variation ⁇ value.
  • the force change value can be determined, for example, by determining, for example, before the detection of the actuation of the actuating element, a reference force value which, for example, corresponds to a resting load of the table. The force change value then results for example in relation to this reference force value.
  • the triggering of the height adjustment takes place as indicated if, within the predetermined period of time after the detected actuation, a force change value which exceeds the threshold value results.
  • the height adjustment can be continued theoretically any length, virtually le- diglich limited by a stop of the tabletop movement up or down, as long as certain other conditions Be ⁇ for the power change value are met.
  • Example ⁇ the movement can be continued as long as the force change value remains greater than the threshold value.
  • the continuation of the height adjustment can also be made dependent on a state of the actuator who ⁇ the.
  • the evaluation circuit is configured, for example, the control signal for height adjustment only as long as deliver to the Steue ⁇ tion, as an actuation of the actuating element is detected.
  • the height adjustment can be easily stopped even when applied force.
  • the evaluation circuit is arranged, for example, in some embodiments, deliver the control signal having a Ge ⁇ speed information for the height adjustment.
  • the speed information depends on an amount of force measured by the force sensor.
  • the speed of the height adjustment can be set in dependence of the applied force on the table within a given frame before ⁇ a minimum speed and a Ma ⁇ ximal york.
  • the speed or the VELOCITY ⁇ keitsinformation can be varied during an operation of amidstnverstel ⁇ lung when the measured force change during the Hö ⁇ height adjustment.
  • the force sensor is set up to measure a force acting between the drive and the table top.
  • the force sensor comprises at least in various embodiments of the following: a strain gauge ⁇ strip which is provided for fastening to the table top, a strain gauge for attachment to or the is vorgese ⁇ hen in a tabletop supporting part of the table, a pressure sensor, in particular a piezobas striving sensor, which is provided for attachment to or in a tabletop supporting part of the table, or a force-dependent resistance.
  • a detection of the operation of the actuating element takes place while a height adjustment of the table top is blocked.
  • no electrical power is supplied to a motor of the drive.
  • a mechanical interlock with a mechanical brake, a holding member or derglei ⁇ chen is performed instead. It is also possible that the height adjustment alone by a self-locking of the electric
  • the blocking of the height adjustment can also be done by supplying electrical power to a motor of the drive.
  • a motor of the drive For example, would be moved in such an embodiment without the supply of electrical power alone by the force acting on the table forces, so that the height, so to speak, adjusted downwards, for example, due to specially selected self-locking of the drive.
  • the table top is held in suspension with a corresponding regulation, so that no height adjustment takes place even with a force acting on the table top.
  • the operating device In order to clearly signal to a user in the various embodiments that by pressing on the related Hung as lifting the table top from a height adjustment ⁇ can be solved, it is provided in various embodiments of the operating device, to provide appropriate signaling means which indicate the detected operation of the operating element.
  • the signaling can be done at ⁇ play, optically, for example by a light-emitting element or a light stick, which are mounted into the table top or to the table top.
  • the signaling can also be acoustic. The activation of such a signaling is carried out accordingly by the evaluation circuit.
  • this further comprises a further to be arranged in the table top actuator, wherein the evaluation circuit is further configured to trigger a height adjustment of the Tischplat ⁇ te only if during the blocking of the height adjustment of the table top actuation of both actuation ⁇ elements is detected.
  • the actuating element or the actuating elements comprise ei ⁇ NEN electromechanical switch, which may for example be designed as a membrane switch.
  • the actuating element comprises or the actuating elements comprise ei ⁇ nen touch-sensitive sensor, in particular a capacitive sensor.
  • a capacitive sensor is capable of touching or approaching, for example, the Detect the hand of a user and accordingly determine an operation.
  • the touch-sensitive sensor is formed for example by a conductive surface, which is made in particular of ei ⁇ nem conductive paint.
  • An operating device can be used in various types of electrically height-adjustable tables, which have the at least one electric drive and the control for controlling the drive.
  • such electric height-adjustable table comprises an embodiment of the operating device, wherein the actuating member comprises a touch-sensitive sensor be ⁇ , which is formed by a conductive surface.
  • this conductive surface is arranged on a surface of the table top or under a coating of the table top.
  • the conductive surface can be without Be ⁇ coating directly mounted on the surface of the table top at a solid table ⁇ introduced, such as by adhering a conductive foil, or by applying an electrically conductive paint.
  • Such an arrangement is also possible with coated tabletops, wherein the conductive surface is applied to the coating.
  • Such a coating can be formed, for example, from plastic or veneer.
  • the conductive surface which in turn may be formed from a conductive plate or foil or a conductive lacquer, is below the Layering or between the core of the table top and the coating is arranged.
  • the provision of the actuating element for the viewer of the table is not visible, so that this sensor fits better into the appearance of the table.
  • the table top can also several ⁇ re actuators or berrittungsempfindli ⁇ chen sensors, as described above, equipped to enable the dependence of the actuation of both actuators.
  • the conductive surface is disposed on a side of the table top facing the floor.
  • the conductive surface or the conductive surfaces of the Tischplat ⁇ te are preferably outside a Häbe ⁇ realm of the table top or a seat portion arranged.
  • conductive pads are provided only on by a user from viewed right or left-hand edge of the table top, may be such that at a übli ⁇ chen work prevents inadvertent Actuate the ⁇ supply of the operating member on the table top or prevented by ⁇ weighing.
  • the evaluation circuit is attached via a screw on the table top.
  • such an arrangement is free of other electrical connections between the evaluation circuit and the conductive surface except the screw connection.
  • An operating device can also be used in a drive system for an electrically height-adjustable table.
  • a drive system according to the improved operating concept, for example, in accordance with an operating device comprising ei ⁇ nem of the embodiments described above, the Wenig ⁇ least an electrical drive for the height adjustment of the table top of the table and the control to drive the actuator.
  • the drive has a motor electronics arranged on a motor of the drive, which includes the control ⁇ tion and the evaluation circuit.
  • the engine electronics, the actuator and the force sensor are connected to each other via a bus system.
  • a bus system thus allows simplified a modular design of the on ⁇ operating system.
  • the engine electronics has, for example, a suitably programmed microcontroller or the like, which preferably takes over both the control of the drives and the evaluation of the sensor signals, ie the function of the evaluation circuit.
  • a method for adjusting the height of a table top of a table can be angege ⁇ ben.
  • Such a table has according to the above embodiments, an area of the table top arranged Betä ⁇ tion element and a force sensor which is adapted to measure a force acting on the table top force. In this case, an actuation of the actuating element is detected currency ⁇ rend a height adjustment of the table top is blocked, in particular blocked mechanically.
  • Measured values are received by the force sensor in a predetermined period of time after the detected actuation. From the received measured values, a force change value, in particular an absolute force change and / or a force gradient is determined. When the change of force value is greater than a threshold value, a vertical adjustment of the table top in a direction carried leads, which depends on a sign of the power change value from ⁇ .
  • the blocking of the height adjustment takes place by supplying electrical power to a motor of the drive.
  • the height adjustment is only as long as Runaway ⁇ leads, as an actuation of the actuating element is detected.
  • FIG. 3 shows a further embodiment of an electrically height-adjustable table
  • FIG. 4 shows a further embodiment of an electrically height-adjustable table
  • FIG. 5 shows a further embodiment of an electrically height-adjustable table
  • FIG. 6 shows a further embodiment of an electrically height-adjustable table
  • FIG. 7 shows a detail of an embodiment of an operating device with a touch-sensitive sensor
  • FIG. 8 shows a further embodiment of an operating device with a touch-sensitive sensor
  • Figure 9 is an exemplary plan view of a table top with actuators.
  • the table comprises a housing with a control CTRL for controlling the drives EA and an evaluation circuit EV, a force sensor FS and an actuating element BE, which is designed as an electromechanical switch EMS.
  • the electric drives EA are shown only symbolically and represent, for example, a known telescopic drive, which is arranged within the legs TL and can cause the height adjustment of the table top TP.
  • a load in particular a bending of the table top TP can be determined.
  • the evaluation circuit EV is set up to detect an actuation of the actuating element BE or EMS, while a height Position of the tabletop TP is blocked. Furthermore, the evaluation circuit EV receives measured values from the force sensor FS in a predetermined time period after the detected actuation and determines a force change value, in particular an absolute force change and / or a force gradient, from the received measured values. If the force change value is greater than a threshold value, a control signal is output from the Auswer ⁇ tescaria EV to the controller CTRL, which triggers a height adjustment of the table top TP in one of two possible directions. The direction depends on one
  • the evaluation circuit EV is set up to output the control signal with speed information for the height adjustment to the control CTRL, the speed information being dependent on an amount of the force measured by the force sensor FS.
  • the speed information can be varied during the duration based on a measured instantaneous force.
  • no electric power is supplied to the motors of the drives EA in the described blocking the height adjustment.
  • a mechanical blockage is instead performed via a mechanical brake, a holding element or the like. It is also possible that the height adjustment is given solely by a self-locking of the electric drives EA, if they are not ver ⁇ provides power or voltage.
  • Height adjustment also by supplying electrical power to the motors done. For example, would be in such a configuration without the supply of electrical Performance alone be moved by acting on the table top TP forces, so that the height, so to speak, adjusted downwards, for example due to specially ge ⁇ selected self-locking of the drive EA.
  • the evaluation circuit EV is set, for example, in some ⁇ On the stalteptept to deliver the control signal with a Geschwin ⁇ dtechniksinformation for height adjustment.
  • the speed information depends on an amount of the force measured by the force sensor FS.
  • the speed of the height adjustment can be adjusted depending on the force applied to the table top TP force within a specified differently enclosed frame of a minimum speed and a maximum speed ⁇ .
  • the speed or the velocity can vary during an operation of a keitsinformationlibrarynverstel ⁇ lung when the measured force change during the Hö ⁇ height adjustment.
  • corresponding signaling means may for example be provided, indicating the detected operation of the Betuschistsele ⁇ ments BE.
  • the signaling can be done, for example, optically, for example by a light-emitting element or a
  • Luminous rod which are mounted in the table top TP or on the table ⁇ plate TP.
  • the signaling can also be acoustic.
  • the control is accordingly effected by the evaluation circuit EV.
  • Such signaling means are not shown for reasons of clarity, but can for example be integrated into the actuating element BE or mounted on the actuating element BE.
  • FIG. 2 shows a further embodiment of a table, which essentially corresponds to FIG. 1, but differs by another embodiment of the force sensor FS.
  • TL force sensors FS are provided in each table leg, which are attached for example on or in a table top supporting or supporting part.
  • the force sensors FS may be formed as a ⁇ sensors, in particular as piezo-based sensors for attachment to or in the tabletop load-bearing or supporting part of the table are provided.
  • the design as a force-dependent resistance is possible in a load-bearing part of the table.
  • the function in particular the evaluation circuit EV, corresponds to the function described in FIG.
  • FIG. 3 shows a further embodiment of a height-adjustable table, which substantially corresponds to the embodiment of FIG. Only the control element BE is formed in this embodiment as a touch-sensitive sensor, in particular as a capacitive sensor CS. The corresponding ⁇ a user must, if he wants to ver provide the table top ⁇ , operate the touch-sensitive sensor, for example by contact, and then exert force on the table top, wherein the function of the evaluation circuit EV corresponds to the previous embodiments.
  • FIG. 4 shows a further embodiment of a table which is similar to the previously described embodiments.
  • the force sensor FS and the evaluation circuit EV are mounted in a common housing on the table top TP, and electrically connected to the controller CTRL. Furthermore, there is an electrical contact between the touch-sensitive sensor CS and the evaluation circuit EV. Accordingly, for example, be used as a control, a conventional control, wherein the evaluation circuit EV instead of a conventional control unit, such as a hand ⁇ switch, is connected to an operating terminal of the controller CTRL.
  • a conventional control wherein the evaluation circuit EV instead of a conventional control unit, such as a hand ⁇ switch, is connected to an operating terminal of the controller CTRL.
  • FIG. 5 shows a further exemplary embodiment of a
  • the operating element BE which is embodied as a capacitive sensor CS, and the two motor electronics ME and the force sensors FS are connected to one another via a bus system BUS.
  • the operation of the height adjustment of the table is as described above ⁇ ben by pressing the actuator BE relationship ⁇ touching the capacitive sensor CS and subsequent force on the table top TP.
  • FIG. 6 shows a further embodiment of an electrically height-adjustable table, which is based essentially on the embodiment described in FIG. Only the capacitive sensor CS as actuator is replaced by an electromechanical switch EMS. The rest of the function is unchanged.
  • FIG. 7 shows a detail of an operating device with a capacitive sensor CS integrated in the table top TP.
  • the table top TP comprises a plate core CM and an upper and lower coating CT, which is designed as a veneer or plastic coating.
  • the capacitive sensor CS is formed as a conductive surface.
  • a housing HS is further provided which comprises a printed circuit board PCB, for example, the controller CTRL or the evaluation circuit EV.
  • the housing HS and the Lei ⁇ terplatte PCB are attached via a screw SV to the table top TP.
  • an electrical contact between the circuit board PCB and the conductive surface CS is prepared on the screw ⁇ compound may be so that no additional cables or the like.
  • Figure 8 shows a modification of the embodiment of Figure 7, wherein the conductive surface CS is applied externally to the lower Be ⁇ coating CT of the table plate TP. Again, a simple electrical contact between the printed circuit board PCB and the conductive surface CS is made via the screw.
  • Figure 9 shows a plan view of a table top TP marked with hatched areas in which the one or more actuators BE are advantageously arranged.
  • ⁇ sondere are the shaded areas outside a seat ⁇ range of tabletop TP, in which a user USR sitting, arranged, which prevents unintentional actuation of Actu ⁇ supply elements BE or at least made more difficult.
  • the force sensor can also be used for other purposes, such as a Kollisi ⁇ onserkennung be used so that no additional material cost arises under certain circumstances.
  • force sensors as strain gauges, piezosensors or force-dependent resistors in table systems can already detect very small force changes even at standstill.
  • the measured values of the force sensors or the force sensor are preferably detected or evaluated only within a certain time range after actuation of the actuating element and can therefore only lead to a height adjustment of the table top in this period.

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Tables And Desks Characterized By Structural Shape (AREA)

Abstract

L'invention concerne un dispositif de commande pour une table réglable électriquement en hauteur qui est équipée d'au moins un entraînement électrique (EA) servant au réglage en hauteur d'un plateau (TP) de la table ainsi qu'une commande (CTRL) servant à la commande de l'entraînement (EA). Le dispositif de commande comprend un élément d'actionnement (BE, EMS, CS) disposé au niveau du plateau (TP) de la table, un capteur de force (FS) qui est mis au point pour mesurer une force agissant sur le plateau (TP) de la table, et un circuit d'évaluation (EV). Ce dernier est mis au point pour : détecter un actionnement de l'élément d'actionnement (BE, EMS, CS) pendant qu'un réglage en hauteur du plateau (TP) de la table est bloqué; recevoir des valeurs de mesure du capteur de force (FS) durant une certaine période de temps prédéfinie après l'actionnement détecté; déterminer à partir des valeurs de mesure reçues une valeur de variation de force; et, lorsque la valeur de variation de force est supérieure à une valeur de seuil, délivrer à la commande (CTRL) un signal de commande qui déclenche un réglage en hauteur du plateau (TP) de la table dans une direction qui dépend d'un signe de la valeur de variation de force.
EP14709680.4A 2013-03-22 2014-03-13 Dispositif de commande pour une table réglable électriquement en hauteur, table réglable électriquement en hauteur, système d'entraînement pour une table réglable électriquement en hauteur et procédé pour régler la hauteur d'un plateau d'une table Active EP2975969B9 (fr)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
DE102013102956 2013-03-22
DE102013107053.1A DE102013107053B4 (de) 2013-03-22 2013-07-04 Bedieneinrichtung für einen elektrisch höhenverstellbaren Tisch, elektrisch höhenverstellbarer Tisch, Antriebssystem für einen elektrisch höhenverstellbaren Tisch und Verfahren zur Höhenverstellung einer Tischplatte eines Tisches
PCT/EP2014/054934 WO2014146963A1 (fr) 2013-03-22 2014-03-13 Dispositif de commande pour une table réglable électriquement en hauteur, table réglable électriquement en hauteur, système d'entraînement pour une table réglable électriquement en hauteur et procédé pour régler la hauteur d'un plateau d'une table

Publications (3)

Publication Number Publication Date
EP2975969A1 true EP2975969A1 (fr) 2016-01-27
EP2975969B1 EP2975969B1 (fr) 2017-11-15
EP2975969B9 EP2975969B9 (fr) 2018-03-21

Family

ID=51567484

Family Applications (1)

Application Number Title Priority Date Filing Date
EP14709680.4A Active EP2975969B9 (fr) 2013-03-22 2014-03-13 Dispositif de commande pour une table réglable électriquement en hauteur, table réglable électriquement en hauteur, système d'entraînement pour une table réglable électriquement en hauteur et procédé pour régler la hauteur d'un plateau d'une table

Country Status (5)

Country Link
US (1) US9955780B2 (fr)
EP (1) EP2975969B9 (fr)
DE (1) DE102013107053B4 (fr)
DK (1) DK2975969T3 (fr)
WO (1) WO2014146963A1 (fr)

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DE102013107053A1 (de) 2014-10-09
DE102013107053B4 (de) 2015-04-09
WO2014146963A1 (fr) 2014-09-25
EP2975969B9 (fr) 2018-03-21
EP2975969B1 (fr) 2017-11-15
DK2975969T3 (da) 2018-01-22
US20160051042A1 (en) 2016-02-25
US9955780B2 (en) 2018-05-01

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